Both functions massively enhance the Arpeggiator Device and make it a creative starting point in the production process. The creation of extensive, individual as well as artist-provided pattern libraries is hereby enabled and accelerated.
It will enhance and speed up productivity and creativity.
Step Recording to the Arpeggiator Device Sequencer is not possible at all.
There maybe options to simulate randomization via Step-Modulators, but these doesnt reflect the overall good usabilaty of Bitwig.
With these level of usability i dont think so.
There might be VSTs outside specialized in MIDI/Arpeggios/Patterns which enabling things like that.
On the other hand the programming effort should be minimal and benefit for the Bitwig Daw is great.
Together it would be a unique feature of Bitwigs Arpegiator Device